.page-news {
  --news-rail-w: 288px;
  --news-pad: clamp(28px, 4.6vw, 68px);
  display: block;
  background:
    radial-gradient(115% 55% at 94% 0%, rgba(192, 70, 44, .16), transparent 62%),
    radial-gradient(85% 45% at 2% 44%, rgba(63, 167, 159, .09), transparent 64%);
}

/* ---------- 顶部编号索引带 ---------- */
.page-news .index-strip__wrap {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-block: 12px;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.page-news .index-strip__wrap::-webkit-scrollbar {
  display: none;
}
.page-news .index-strip__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
  padding: 7px 13px;
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--index);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-news .index-strip__item:hover,
.page-news .index-strip__item:focus-visible {
  color: var(--paper);
  border-color: var(--line-2);
  background: rgba(242, 237, 228, .05);
}
.page-news .index-strip__item.is-active,
.page-news .index-strip__item[aria-current="true"],
.page-news .index-strip__item[aria-current="location"] {
  color: var(--paper);
  border-color: var(--red);
  background: rgba(192, 70, 44, .2);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding-block: 18px 0;
  font-family: var(--font-ui);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--index);
}
.page-news .breadcrumb a {
  color: var(--index);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-news .breadcrumb a:hover {
  color: var(--paper);
  border-bottom-color: var(--line-2);
}
.page-news .breadcrumb__sep {
  margin-inline: 8px;
  color: rgba(168, 162, 154, .55);
}

/* ---------- 页头 ---------- */
.page-news .news-head {
  padding-block: clamp(26px, 4.5vw, 58px) clamp(18px, 3vw, 36px);
}
.page-news .news-head__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: end;
}
.page-news .news-head__title {
  margin: 16px 0 22px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 5.6vw, 84px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--paper);
}
.page-news .news-head__intro {
  max-width: 62ch;
  margin: 0 0 14px;
  font-family: var(--font-read);
  font-size: clamp(15.5px, 1.1vw, 17.5px);
  line-height: 1.85;
  color: rgba(242, 237, 228, .84);
}
.page-news .news-head__intro:last-of-type {
  margin-bottom: 0;
}
.page-news .news-head__intro a {
  color: var(--red-lit);
  text-decoration: none;
  border-bottom: 1px solid rgba(224, 112, 79, .45);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-news .news-head__intro a:hover,
.page-news .news-head__intro a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}
.page-news .news-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}
.page-news .meta-chip {
  padding: 7px 13px;
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--index);
  border: 1px solid var(--line);
  background: rgba(31, 33, 36, .72);
}

/* ---------- 分类说明面板 ---------- */
.page-news .news-head__legend {
  position: relative;
  padding: 22px 22px 24px;
  border: 1px solid var(--line-2);
  background:
    linear-gradient(180deg, rgba(224, 169, 43, .06), transparent 50%),
    rgba(31, 33, 36, .78);
  box-shadow: var(--shadow-panel);
}
.page-news .news-head__legend::before {
  content: "";
  position: absolute;
  inset: 6px -6px -6px 6px;
  border: 1px solid rgba(12, 13, 14, .6);
  z-index: -1;
}
.page-news .legend {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 13px;
}
.page-news .legend li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(242, 237, 228, .1);
}
.page-news .legend li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.page-news .legend li > span:last-child {
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.7;
  color: var(--index);
}

/* ---------- 分类标签 ---------- */
.page-news .tag {
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--font-ui);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .06em;
  line-height: 1.6;
  white-space: nowrap;
  border: 1px solid currentColor;
  border-radius: 1px;
}
.page-news .tag--rev {
  color: var(--red-lit);
  background: rgba(192, 70, 44, .2);
}
.page-news .tag--craft {
  color: var(--jade);
  background: rgba(63, 167, 159, .14);
}
.page-news .tag--net {
  color: var(--saffron);
  background: rgba(224, 169, 43, .14);
}
.page-news .tag--brand {
  color: var(--index);
  background: rgba(168, 162, 154, .12);
}
.page-news .tag--pick {
  color: var(--paper);
  border-style: dashed;
  background: transparent;
}

/* ---------- 主体骨架 ---------- */
.page-news .news-body {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  padding-block: clamp(10px, 2vw, 22px) clamp(52px, 8vw, 104px);
}

/* ---------- 章节 ---------- */
.page-news .news-sec {
  padding-block: var(--news-pad);
  border-top: 1px solid var(--line);
}
.page-news .news-sec--first {
  padding-top: clamp(20px, 3vw, 36px);
}
.page-news .news-sec__head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(22px, 3vw, 34px);
}
.page-news .news-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 2.6vw, 36px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--paper);
}
.page-news .news-sec__lead {
  max-width: 68ch;
  margin: 0;
  font-family: var(--font-read);
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(242, 237, 228, .7);
}
.page-news .news-sec__lead a {
  color: var(--red-lit);
  text-decoration: none;
  border-bottom: 1px solid rgba(224, 112, 79, .4);
}

/* ---------- 图片 ---------- */
.page-news .news-figure {
  margin: 0 0 clamp(22px, 3vw, 34px);
}
.page-news .news-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-2);
  background: var(--panel);
}
.page-news .news-figure--rail {
  margin-bottom: 0;
  align-self: start;
}
.page-news .news-cap {
  margin: 11px 0 0;
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--index);
}

/* ---------- 行式条目列表 ---------- */
.page-news .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-news .log-list--tight {
  margin-top: 0;
}
.page-news .log-row {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) auto;
  grid-template-areas:
    "no tag time"
    "body .page-news body";
  gap: 10px 14px;
  align-items: start;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-news .log-row:last-child {
  border-bottom: 1px solid var(--line);
}
.page-news .log-row:hover {
  border-top-color: var(--line-2);
  background: rgba(242, 237, 228, .028);
}
.page-news .log-row__no {
  grid-area: no;
  font-family: var(--font-num);
  font-size: 24px;
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--index);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.page-news .log-row:hover .log-row__no,
.page-news .log-row__no:focus-visible {
  color: var(--red-lit);
}
.page-news .log-row > .tag {
  grid-area: tag;
  justify-self: start;
  align-self: start;
  margin-top: 5px;
}
.page-news .log-row__body {
  grid-area: body;
  min-width: 0;
}
.page-news .log-row__title {
  margin: 0 0 7px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16.5px, 1.5vw, 20px);
  line-height: 1.5;
  color: var(--paper);
}
.page-news .log-row__sum {
  margin: 0;
  font-family: var(--font-read);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 237, 228, .74);
}
.page-news .log-row__sum a,
.page-news .log-row__more a {
  color: var(--red-lit);
  text-decoration: none;
  border-bottom: 1px solid rgba(224, 112, 79, .4);
}
.page-news .log-row__more {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.8;
  color: var(--index);
  transition: max-height 300ms var(--ease), opacity 200ms var(--ease), margin-top 300ms var(--ease);
}
.page-news .log-row:hover .log-row__more,
.page-news .log-row:focus-within .log-row__more {
  max-height: 10em;
  opacity: 1;
  margin-top: 9px;
}
.page-news .log-row__time {
  grid-area: time;
  align-self: start;
  margin-top: 7px;
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--index);
  white-space: nowrap;
}

/* ---------- 季度分隔带 ---------- */
.page-news .log-break {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 26px 0 8px;
  border-top: 1px solid var(--line-2);
}
.page-news .log-break__label {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--saffron);
  white-space: nowrap;
}
.page-news .log-break__rule {
  flex: 1 1 auto;
  height: 1px;
  min-width: 20px;
  background-image: repeating-linear-gradient(to right, rgba(242, 237, 228, .3) 0 9px, transparent 9px 18px);
}

/* ---------- 双栏章节 ---------- */
.page-news .news-sec__split {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}

/* ---------- 右侧常驻索引 ---------- */
.page-news .news-rail {
  display: grid;
  gap: 18px;
  align-content: start;
}
.page-news .rail-card {
  position: relative;
  padding: 20px 20px 22px;
  border: 1px solid var(--line-2);
  border-top: 3px solid var(--red);
  background:
    linear-gradient(180deg, rgba(192, 70, 44, .08), transparent 46%),
    rgba(31, 33, 36, .82);
  box-shadow: var(--shadow-panel);
}
.page-news .rail-card--quiet {
  border-top-color: var(--jade);
  background:
    linear-gradient(180deg, rgba(63, 167, 159, .07), transparent 46%),
    rgba(31, 33, 36, .72);
}
.page-news .rail-nav {
  display: grid;
  gap: 2px;
  margin-top: 14px;
}
.page-news .rail-nav__item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 10px 10px 10px 8px;
  font-family: var(--font-ui);
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-news .rail-nav__idx {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--index);
}
.page-news .rail-nav__item:hover,
.page-news .rail-nav__item:focus-visible {
  color: var(--red-lit);
  border-left-color: var(--red-lit);
  background: rgba(224, 112, 79, .09);
}
.page-news .rail-jump {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}
.page-news .rail-jump a {
  display: block;
  padding: 10px 12px;
  font-family: var(--font-ui);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--paper);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.page-news .rail-jump a:hover,
.page-news .rail-jump a:focus-visible {
  color: var(--paper);
  border-color: var(--jade);
  background: rgba(63, 167, 159, .12);
}
.page-news .rail-note {
  margin: 14px 0 0;
  font-family: var(--font-read);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--index);
}
.page-news .rail-btn {
  margin-top: 16px;
  width: 100%;
  text-align: center;
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-news .log-row {
    grid-template-columns: 88px 108px minmax(0, 1fr) 92px;
    grid-template-areas: "no tag .page-news time";
    gap: 0 20px;
    align-items: start;
  }
  .page-news .log-row > .tag {
    margin-top: 6px;
  }
  .page-news .log-row__time {
    margin-top: 8px;
    text-align: right;
  }
  .page-news .news-sec__split {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .95fr);
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 900px) {
  .page-news .news-head__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(288px, .82fr);
  }
}

@media (min-width: 1024px) {
  .page-news .news-body {
    grid-template-columns: minmax(0, 1fr) var(--news-rail-w);
    align-items: start;
  }
  .page-news .news-rail {
    position: sticky;
    top: calc(var(--nav-h) + 20px);
  }
  .page-news .news-figure--band img {
    aspect-ratio: 21 / 9;
  }
}

@media (min-width: 1280px) {
  .page-news .log-row {
    grid-template-columns: 100px 120px minmax(0, 1fr) 96px;
    gap: 0 24px;
  }
  .page-news .news-body {
    gap: 64px;
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .log-row__more,
  .page-news .log-row,
  .page-news .log-row__no,
  .page-news .index-strip__item,
  .page-news .rail-nav__item {
    transition-duration: 1ms;
  }
}
<<<END>>>